On Tue, Oct 22, 2013 at 05:03:39PM +0000, Jan Medved (jmedved) wrote:
> We updated the Network Topology drafts - use cases
> (http://datatracker.ietf.org/doc/draft-amante-i2rs-topology-use-cases/)
> and the topology information model
> (http://datatracker.ietf.org/doc/draft-medved-i2rs-topology-im/).
> Please have a look - comments & feedback would be greatly
> appreciated.
> 
> Also, as agreed at the last WG meeting in Berlin, we'd like to open
> a discussion whether network topology (as defined in the above use
> cases and the information model) is in the WG charter.  The
> statement "The ability to extract information about topology from
> the network" in the WG charter says that topology is in charter, but
> does not exactly say how.

Jan,

WRT to the use-case draft:
If section 2 would explicitly define Topology that would help.  The
draft abstract seems to define topology as "routing, forwarding and
policy information".  Section 1 seems to treat Topology as graph
information only, separate from inventory and stastics.  Section 3
seems to flip that and go back to the abstract's definition.

WRT the IM draft:
There seems to be a differentiation made between topology and topology
model.  If I read it correctly, a topology model consists of graph
information (what I think of as topology), and other baggage.  If I
got that right, this seems similar to my mental model of ISIS: the
topology consists of information describing how the nodes are
connected, and IP information is essentially baggage that makes it
possible to route IP packets.

Personally I think defining a topology model that uses different
graphs and corresponding baggage to provide useful abstractions is in
scope.  I'd like it if you could tighten up the language though.

-Scott


> 
> 
> 
> Thanks, Jan
> 

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